Author: Casandra L. Ferriter
Publisher:
ISBN:
Category : Isometric exercise
Languages : en
Pages : 110
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ABSTRACT: The study was designed to examine the effects of one bout of acute moderate resistance exercise on arterial stiffness in postmenopausal women. Nine untrained postmenopausal women [age 59.79 ± 6.22, weight 73.89 ± 13.08 kg, height 162.89 ± 6.11 cm, BF% 36.33 ± 8.85%] who had refrained from food and caffeine 4 hr prior to the intervention session and the control session, as well as avoided vigorous exercise 24 hr prior to the intervention session and control session, performed one bout of moderate intensity resistance exercise (70% of 10-RM). The exercises performed involved both the upper body and the lower body; dumbbell (DB) bent-over row, DB chest press, DB bicep curl, DB tricep extension, DB squats, DB Romanian deadlifts (RDLs), DB lunges, and DB calf raises. Measurements of heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), central systolic blood pressure (CSBP), central diastolic blood pressure (CDBP), pulse wave velocity (PWV), and augmentation index (AIx) were taken at baseline after 10 min of supine rest, post exercise, 30 min post exercise, and 60 min post exercise. Heart rate, SBP, CSBP, and CDBP were significantly (p .05) affected by resistance training immediately post-exercise. Pulse wave velocity and AIx were not significantly (p .05) affected by the exercise session. One reason why PWV and AIx, prime measures of arterial stiffness, were not significantly altered may have been the subjects' low exercise intensity. In conclusion, no effects of the exercise were observed in PWV or AIx. However, moderate intensity resistance exercise resulted in post-exercise hypotension in postmenopausal women which may be valuable information for future research.
Author: Taylor J. Kane
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
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ABSTRACT: Elevated arterial stiffness has been recognized as an independent risk factor for cardiovascular disease and has been associated with long-term worse clinical outcomes in several populations. The purpose of this study was to investigate the effects of gender and time following one acute bout of moderate intensity resistance exercise on arterial stiffness in college-aged men and women. A total of 26 men (n = 14) and women (n = 12) completed three sessions: screening, familiarization, and testing in the order they are listed. There were no changes in pulse wave velocity or augmentation index in either men or women across time. Men did have significantly higher systolic blood pressure at baseline (p = .00, d =1.4), immediately post exercise (p = .01, d = 1.0) and 30 minutes post exercise (p = .04, d = .08) relative to women. Men also had significantly higher heart rates immediately post exercise (p = .02, d = 0.9) and 30 minutes post exercise (p = .04, p = 0.9) when compared to women. The lack of change in parameters of arterial stiffness suggest moderate intensity exercise does not increase arterial stiffness in college-aged adults.
Author: Thomas R. Black
Publisher:
ISBN:
Category : Atherosclerosis
Languages : en
Pages : 226
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Abstract: The investigation was designed to determine the effect of moderate and high intensity resistance exercise (RE) on arterial stiffness (AS) . Subjects consisted of young healthy males who regularly resistance trained (N = 12) Each subject completed both the moderate and high intensity bouts in a randomized order. Pulse wave velocity (PWV) was used to estimate AS and was measured at baseline, 10 mm post, 20 mm post, and 30 mm post. Heart rate (HR) was measured during each bout to serve as a marker of sympathetic nervous system activity. A total body RE workout was completed during each bout and consisted of four free weight exercises. Significant increases (p
Author: Emily M. Miele
Publisher:
ISBN:
Category : Cardiovascular system
Languages : en
Pages : 104
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ABSTRACT: High-Intensity Interval Training (HUT) has been associated with greater reductions in cardiovascular disease (CVD) risk factors when compared to continuous moderate exercise. Arterial stiffness (AS) is an independent risk factor for CVD that increases exponentially in women following menopause. The current research was designed to investigate the acute AS response to a single bout of HUT versus a single bout of moderate continuous endurance training (MCT) in postmenopausal women. A total of 13 women (age = 60.85 +/- 4.41 years) completed the study. Subjects completed both a HUT and a MCT exercise protocol on separate occasions. Pulse wave velocity (PWV), augmentation index (AIx), central systolic blood pressure (CSBP), and central diastolic blood pressure (CDBP) were measured preexercise, 15 min postexercise, and 30 min postexercise to assess arterial stiffness. No significant interaction (p > .05) between exercise intervention and time was determined for PWV, AIx, CSBP, or CDBP. A trend was found for a greater decrease in AIx following HUT compared to the decrease in AIx following MCT (p = .086) . A significant (p
Author: Joel Chapman
Publisher:
ISBN:
Category :
Languages : en
Pages : 298
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Author: Quintin Scott
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659283413
Category :
Languages : en
Pages : 52
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Book Description
Arterial stiffness increases cardiovascular disease risk for stroke, myocardial infarction, and mortality. The aim of this study was to examine the influence of resistance exercise intensity on arterial stiffness and blood pressure. Two resistance exercise conditions, low and high intensity, were compared. In a longitudinal, cross-over study design, thirty-two subjects (n=32, 17 male, mean age= 24.6) completed both conditions on separate days. Pulse wave velocity (PWV) was used as a measure of central and peripheral arterial stiffness at baseline, at 15 minutes post, and at 30 minutes post exercise. Central PWV increased in the low mode and returned toward baseline at 30 minutes post-exercise (p
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Julianne N. Reger
Publisher:
ISBN:
Category : Exercise for women
Languages : en
Pages : 109
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Book Description
Author: Nicole M. Fortunato
Publisher:
ISBN:
Category : Arteriosclerosis
Languages : en
Pages : 86
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ABSTRACT: The study was designed to determine the effect of moderate intensity resistance exercise on arterial stiffness with and without the Valsalva maneuver. Subjects {N = 13) consisted of males between 18-30 years old who were familiar with resistance training. All subjects completed one session of moderate intensity resistance exercise (60% of 1-RM) with the Valsalva maneuver, and a second session without the Valsalva maneuver in a counterbalanced order. Pulse wave velocity (PWV) was used to measure arterial stiffness before exercise, 10 min post, 30 min post, and 60 min postexercise. No significant interaction F(3,36) = 0.74, p = .54 was found between the condition of Valsalva maneuver, or no Valsalva maneuver, and the test occasion. No significant main effect F(l,12) = 0.02, p = .89 was found for the treatment condition of Valsalva maneuver and no Valsalva maneuver. Also, no significant main effect F(1.96, 23.57) = 0.18, p = .84 was found for test occasion (preexercise, 10 min post, 30 min post, and 60 min postexercise). Moderate intensity resistance exercise with and without the Valsalva maneuver did not negatively affect arterial stiffness.
Author: Ciaran M. Fairman
Publisher:
ISBN:
Category : Kinesiology
Languages : en
Pages : 117
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Book Description
Physical activity is a powerful behavioral intervention that can improve key metabolic and cardiovascular risk factors in aging women. Although a considerable amount of research has focused on the health benefits of aerobic exercise participation among aging women, much less is known about physiological and affective responses to an acute bouts of resistance exercise in women who are postmenopausal. The purpose of this study was to determine the effects of RE intensity on physiological, affective, and motivational outcomes in postmenopausal women at heightened risk for chronic disease. A total of 13 overweight women who were postmenopausal (Age: 9.23±11.31 years; Height: 63.27±2.74in: Weight: 77.23±10.60kg) participated in the study. Each participant completed 3 experimental conditions. Prior to experimental conditions, participants completed a baseline assessment of strength and body composition, 6 familiarization sessions to acclimate participants to the resistance exercises and loads for each condition. Three sets of each exercise were performed in each experimental, whereas the load and number of repetitions lifted differed in each experimental condition. The low-load condition involved sets of 12-15 reps at 55%-64% 1 repetition maximum (RM), with 60 seconds of rest between sets. The moderate load involved sets of 8-12 reps at 65%-75% 1RM, with 90 seconds of rest between sets. The heavy load involved sets of 3-6 reps at 80-90% 1RM, with 120 seconds of rest between sets. Assessment of inflammatory markers were obtained prior to, immediately after, 15 minutes and 30 minutes after each experimental condition. The feeling scale (FS) was administered before, during (after the third set of each exercise) and immediately following each condition. Rate of perceived exertion (RPE) was assessed following each set. Motivation was assessed before and immediately following each session. Self-Efficacy and intention were assessed immediately following each session. Results revealed no significant time, condition or time x condition differences in cortisol, inflammatory markers or motivational correlates. There was a significant time effect for lactate, with levels peaking immediately after each experimental condition before returning to baseline before 30 minutes after exercise. There was no difference in intention or self-efficacy between experimental conditions. It is concluded that acute bouts of RE at 55-64% 1RM, 65-75% 1RM and 80-90% 1RM result in comparable metabolic stress, inflammatory and affective responses. This lends further support to the safety and tolerability of high load resistance exercise in postmenopausal women. Given the comparable, positive affective response after the low, medium and high conditions in our study, fitness professionals could capitalize on these findings by encouraging postmenopausal women to select higher loads that may confer specific strength benefits, yet still yield positive affective responses.
